eagine::shapes::value_tree_loader Class Reference

Loader that fetches shape data from a value tree (JSON, YAML, etc.) More...

#include <eagine/shapes/value_tree.hpp>

Public Member Functions
auto	vertex_count () -> span_size_t override
	Returns the shaped vertex count.
auto	attribute_variants (vertex_attrib_kind) -> span_size_t override
	Returns the count of shape attribute variants.
auto	variant_name (vertex_attrib_variant) -> string_view override
	Returns the name of the specified attribute variant.
auto	values_per_vertex (vertex_attrib_variant) -> span_size_t override
	Returns the number of values per vertex for the specified variant.
auto	attrib_type (vertex_attrib_variant vav) -> attrib_data_type override
	Returns the attribute data type for the specified variant.
auto	is_attrib_normalized (vertex_attrib_variant) -> bool override
	Indicates if the specified variant attribute values should be normalized.
void	attrib_values (vertex_attrib_variant, span< byte >) override
	Fetches the vertex attribute data for the specified variant as bytes.
void	attrib_values (vertex_attrib_variant, span< std::int16_t >) override
	Fetches the vertex attribute data for the specified variant as integers.
void	attrib_values (vertex_attrib_variant, span< std::int32_t >) override
	Fetches the vertex attribute data for the specified variant as integers.
void	attrib_values (vertex_attrib_variant, span< std::uint16_t >) override
	Fetches the vertex attribute data for the specified variant as integers.
void	attrib_values (vertex_attrib_variant, span< std::uint32_t >) override
	Fetches the vertex attribute data for the specified variant as integers.
void	attrib_values (vertex_attrib_variant, span< float >) override
	Fetches the vertex attribute data for the specified variant as floats.
auto	index_type (drawing_variant) -> index_data_type override
	Returns the index data type for the specified draw variant.
auto	index_count (drawing_variant) -> span_size_t override
	Returns the index count for the specified drawing variant.
void	indices (drawing_variant, span< std::uint16_t > dest) override
	Fetches the index data for the specified drawing variant.
void	indices (drawing_variant, span< std::uint32_t > dest) override
	Fetches the index data for the specified drawing variant.
auto	operation_count (drawing_variant) -> span_size_t override
	Returns the number of drawing instructions for the specified variant.
void	instructions (drawing_variant, span< draw_operation > ops) override
	Fetches the drawing operations for the specified drawing variant.
Public Member Functions inherited from eagine::main_ctx_object
	main_ctx_object (identifier obj_id, main_ctx_parent parent) noexcept
	Initialization from object id and parent.
auto	process_instance_id () const noexcept -> process_instance_id_t
	Returns the process id.
auto	main_context () const noexcept -> main_ctx &
	Returns a reference to the main context singleton.
auto	app_config () const noexcept -> application_config &
	Returns a reference to the application config object.
auto	as_parent () noexcept -> main_ctx_object_parent_info
	Returns this as main_ctx_object_parent_info.
template<typename T >
auto	cfg_init (string_view key, T initial, string_view tag={}) -> T
	Reads and returns the configuration value identified by key.
template<typename Extractable , typename T >
auto	cfg_extr (string_view key, T initial, string_view tag={}, type_identity< Extractable >={}) -> T
	Reads and returns the configuration value identified by key.
Public Member Functions inherited from eagine::named_logging_object< main_ctx_log_backend_getter >
	named_logging_object (identifier id, main_ctx_log_backend_getter backend_getter) noexcept
	Constructor from identifier and backend_getter object. More...
	named_logging_object (identifier id, const named_logging_object &parent) noexcept
	Constructor from logger id and parent logging object.
	named_logging_object () noexcept=default
	Construct logging object without backend.
	named_logging_object (named_logging_object &&temp) noexcept
	Move constructor.
	named_logging_object (const named_logging_object &that) noexcept
	Copy constructor.
auto	operator= (named_logging_object &&) noexcept -> named_logging_object &=default
	Move assignment operator.
auto	operator= (const named_logging_object &) -> named_logging_object &=default
	Copy assignment operator.
constexpr auto	object_id () const noexcept
	Returns the identifier of this logging object.
void	object_description (string_view display_name, string_view description) noexcept
	Sets the human-readable name and description of this object.
auto	log_fatal (string_view format) noexcept
	Create a log message entry for fatal error, with specified format. More...
auto	log_error (string_view format) noexcept
	Create a log message entry for error, with specified format. More...
auto	log_warning (string_view format) noexcept
	Create a log message entry for warning, with specified format. More...
auto	log_info (string_view format) noexcept
	Create a log message entry for information, with specified format. More...
auto	log_stat (string_view format) noexcept
	Create a log message entry for statistic, with specified format. More...
auto	log_debug (string_view format) noexcept
	Create a log message entry for debugging, with specified format. More...
auto	log_trace (string_view format) noexcept
	Create a log message entry for tracing, with specified format. More...
auto	log_backtrace (string_view format) noexcept
	Create a log message entry for backtracing, with specified format. More...
auto	log_debug_stream () noexcept
	Returns a log entry stream for debug messages. More...
auto	log_error_stream () noexcept
	Returns a log entry stream for error messages. More...
auto	log_chart_sample (identifier series, float value) noexcept -> named_logging_object &
	Stores a new value in the specified chart data series.
auto	log_chart_sample (identifier series, const tagged_quantity< T, U > &qty) noexcept -> std::enable_if_t< std::is_convertible_v< T, float >, named_logging_object & >
	Stores a new value in the specified chart data series.
auto	log_chart_sample (identifier series, const valid_if< T, P > &opt_value) noexcept -> named_logging_object &
	Stores a new value in the specified chart data series.
Public Member Functions inherited from eagine::basic_logger< main_ctx_log_backend_getter >
auto	backend () noexcept
	Returns a pointer to the backend of this logger object.
auto	instance_id () const noexcept -> logger_instance_id
	Returns the unique id of this logger instance.
Public Member Functions inherited from eagine::shapes::generator_base
auto	attrib_bits () noexcept -> vertex_attrib_bits final
	Returns the set of vertex attributes supported by this generator.
auto	enable (generator_capability cap, bool value) noexcept -> bool final
	Enables or disables the specified generator capability.
auto	is_enabled (generator_capability cap) noexcept -> bool final
	Indicates if the specified generator capability is enabled.
auto	draw_variant_count () -> span_size_t override
	Returns the count of possible shape draw variants.
void	indices (drawing_variant, span< std::uint8_t > dest) override
	Fetches the index data for the specified drawing variant.
Public Member Functions inherited from eagine::shapes::generator
auto	has (vertex_attrib_kind attrib) noexcept
	Tests if the specified attribute is supported by this generator.
auto	disable (generator_capability cap) noexcept
	Disables the specified generator capability.
auto	strips_allowed () noexcept -> bool
	Indicates if element strips are enabled.
auto	fans_allowed () noexcept -> bool
	Indicates if element fans are enabled.
auto	primitive_restart () noexcept -> bool
	Indicates if primitive restart is enabled.
auto	find_variant (vertex_attrib_kind attrib, string_view name) -> vertex_attrib_variant
	Finds attribute variant by kind and name.
auto	value_count (vertex_attrib_variant vav) -> span_size_t
	Returns the total number of values for the specified attribute variant.
auto	draw_variant (span_size_t index) -> drawing_variant
	Returns the identifier of the drawing variant at the specified index.
auto	index_type () -> index_data_type
	Returns the index data type for the default draw variant.
auto	index_count ()
	Returns the index count for the default drawing variant.
void	indices (span< std::uint8_t > dest)
	Fetches the index data for the default drawing variant.
void	indices (span< std::uint16_t > dest)
	Fetches the index data for the default drawing variant.
void	indices (span< std::uint32_t > dest)
	Fetches the index data for the default drawing variant.
auto	operation_count ()
	Returns the number of drawing instructions for the default variant.
void	instructions (span< draw_operation > dest)
	Fetches the drawing operations for the default drawing variant.
virtual auto	bounding_sphere () -> math::sphere< float, true >
	Returns the bounding sphere for the generated shape.
virtual void	ray_intersections (drawing_variant, span< const math::line< float, true >> rays, span< optionally_valid< float >> intersections)
	Calculates the intersections of the shape geometry with a ray.
void	ray_intersections (span< const math::line< float, true >> rays, span< optionally_valid< float >> intersections)
	Calculates the intersections of the shape geometry with a ray.
auto	ray_intersection (drawing_variant var, const math::line< float, true > &ray) -> optionally_valid< float >
	Returns the parameter for the nearest intersection with a ray.
auto	ray_intersection (const math::line< float, true > &ray) -> optionally_valid< float >
	Returns the parameter for the nearest intersection with a ray.
Public Member Functions inherited from eagine::interface< generator >
constexpr	interface (const interface &)=delete
	Not copyable.
auto	operator= (interface &&)=delete
	Not move assignable.
auto	operator= (const interface &)=delete
	Not copy assignable.

Additional Inherited Members
Public Types inherited from eagine::named_logging_object< main_ctx_log_backend_getter >
using	entry_type = std::conditional_t< is_log_level_enabled_v< severity >, log_entry, no_log_entry >
	The entry type for the specified log_event_severity. More...
Public Types inherited from eagine::basic_logger< main_ctx_log_backend_getter >
using	entry_type = std::conditional_t< is_log_level_enabled_v< severity >, log_entry, no_log_entry >
	The entry type for the specified log_event_severity. More...
Protected Member Functions inherited from eagine::interface< generator >
constexpr	interface () noexcept=default
	Default constructible by derived.
constexpr	interface (interface &&) noexcept=default
	Move constructible by derived.

Detailed Description

Loader that fetches shape data from a value tree (JSON, YAML, etc.)

See also

from_value_tree

valtree::compound

valtree::attribute

valtree::from_json_text

valtree::from_yaml_text

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The documentation for this class was generated from the following file:

• eagine/shapes/value_tree.hpp